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HomeMy WebLinkAboutmem_thndrhlls_RUL_Memo 3_20150213 CITY OF RENTON Technical Memorandum No. 3 Remaining Useful Life (RUL) & Rehabilitation Analysis Thunder Hills Sanitary Sewer Interceptor Alternative Analysis February 13, 2015 Prepared By: Stantec Consulting Services Inc. 11130 NE 33rd Place Suite 200 Bellevue, WA 98004 425.869.9448 TECHNICAL MEMORANDUM NO. 3 February 13, 2015 ew v:\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx i Contents 1.0 INTRODUCTION ...........................................................................................................1.1 2.0 EXISTING INTERCEPTOR CONDITION ..........................................................................2.1 2.1 MANHOLE 051 TO 051A ................................................................................................. 2.1 2.2 MANHOLE 051A TO 050 ................................................................................................. 2.2 2.3 MANHOLE 050 TO 049 ................................................................................................... 2.2 2.4 MANHOLE 049 TO 046 ................................................................................................... 2.2 2.5 MANHOLE 046 TO 036 ................................................................................................... 2.3 2.6 MANHOLE 036 TO 035 ................................................................................................... 2.3 2.7 MANHOLE 035 TO 034 TO 033....................................................................................... 2.4 3.0 REMAINING USEFUL LIFE ASSESSMENT ........................................................................3.4 4.0 REHABILITATION FEASIBILITY .......................................................................................4.6 4.1 SPOT REPAIR STATION 23+20 ......................................................................................... 4.6 4.2 SPOT REPAIR STATION 22+40 ......................................................................................... 4.6 4.3 SPOT REPAIR STATION 12+20 ......................................................................................... 4.6 4.4 CIPP REHABILITATION ..................................................................................................... 4.7 Appendices APPENDIX A: FIGURES APPENDIX B: SEWER MAIN INSPECTION APPENDIX C: FIELD INVESTIGATION REPORTS TECHNICAL MEMORANDUM NO. 3 February 13, 2015 rs \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx ii TECHNICAL MEMORANDUM NO. 3 February 13, 2015 1.0 INTRODUCTION This memorandum includes the remaining useful life (RUL) and rehabilitation analysis of the Thunder Hills Alternative Analysis project. The Alternative Analysis aims to find the best alternative that will improve the functionality of the Thunder Hills Interceptor. The project focuses on the Thunder Hills Interceptor, particularly the section between Grant Avenue South and Benson Road South. The Interceptor was originally constructed in 1965, and serves a portion of the City’s Rolling Hills neighborhood southeast of Renton City Hall. Several portions of the existing interceptor have been replaced over time as additional development (interties) has occurred, or as required due to erosion from Thunder Hills Creek. The goals of the RUL and rehabilitation analysis section of the Alternative Analysis are to identify the existing condition of the interceptor, to assign condition rankings from good to moderate to poor, and to assess the feasibility of rehabilitating the existing line using cured-in-place-pipe (CIPP). 2.0 EXISTING INTERCEPTOR CONDITION The relevant portion of the Thunder Hills Interceptor runs from Grant Avenue South to Benson Road South through a small canyon created by Thunder Hills Creek. As stated above, the interceptor was originally installed in 1965 and appears to have been constructed with Asbestos Cement (AC) pipe using cast iron fittings for bends and wyes. Over the years, sections of the existing AC interceptor have been replaced with ductile iron pipe likely due to either exposure of the interceptor from erosion caused by Thunder Hills Creek, or due to development in the area and the need to install new interties from perpendicular sewer lines. Figures 1 through 4 contained in “Appendix A – Figures” show the existing interceptor information. In June of 2014 Stantec contracted with Bravo Environmental NW (Bravo) to perform a field investigation of the existing Thunder Hills Interceptor and to provide an analysis of the condition of the existing sewer line. The field investigation was performed using PANORAMO digital scanning which allows for a 360 degree view of the interceptor along its alignment. A summary of existing conditions is provided below. The detailed condition assessment is contained in “Appendix B – Sewer Main Inspection”, which is further supported by the field investigation reports generated by Bravo in “Appendix C – Field Investigation Reports”. 2.1 MANHOLE 051 TO 051A The existing interceptor from Manhole 051, located in Grant Avenue S, to Manhole 051A, located adjacent to Thunder Hills Creek, is approximately 98 feet long and is constructed with 10-inch diameter concrete pipe. The pipe appears to be from the original construction of the Thunder Hills Interceptor and, for its age, is in generally good condition. There are several locations along the alignment with grease buildup, as well as several broken lips at the 6 o’clock position, presumably from years of flow and debris wearing down the concrete. Additionally, there are several pipe joints that have separated either over time, or were installed that way. The separated joints are not severe enough to expose the pipe to the surrounding soil, and were more likely caused by deflecting the joints to allow for a moderate bend in the existing pipe. \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 1 TECHNICAL MEMORANDUM NO. 3 February 13, 2015 2.2 MANHOLE 051A TO 050 The existing interceptor from Manhole 051A to 050 parallels Thunder Hills Creek on the northeast side of the creek. The interceptor shifts from being in the area between the existing access road and the creek to within the access road as it continues from Manhole 051A to Manhole 050. Starting at Manhole 051A, the existing interceptor is constructed of 10-inch diameter asbestos cement (AC) pipe until it reaches approximately Station 23+20 where the line changes from 10- inch diameter AC to 12-inch diameter ductile iron (DI). Based on the digital scan of the pipe, it appears that the last 65 feet of the pipe prior to Manhole 050 was replaced and the existing 10- inch AC pipe was stubbed into the new 12-inch DI line. The overall length of this section of interceptor is approximately 512 feet. The interceptor from Manhole 051A to Manhole 050 appears to be part of the original construction of the Thunder Hills Interceptor in 1965, except for the final portion of ductile iron line. The pipe is in generally good condition for its age except were cast iron fittings were used. There are three wye fittings in this section of the existing interceptor, with the branch for all wye fittings pointing in the 12 o’clock position to act as a clean out for the interceptor. In addition to the cast iron wye fittings there are two other cast iron bends and one cast iron sleeve at the transition from 10-inch AC to 12-inch DI pipe. Each of the cast iron fittings showed severe corrosion from their years of service and exposure to sewage and hydrogen sulfide (H2S). As seen in the interceptor run above, there are several separated joints that appear to be due to pipe deflection as the pipe was installed to parallel the creek. 2.3 MANHOLE 050 TO 049 The existing interceptor from Manhole 050 to 049 is a short section of pipe that parallels the northeast side of Thunder Hills Creek. The interceptor is generally located within the existing access road and appears to be part of the original construction of the interceptor. The line is constructed of 10-inch diameter AC pipe and is approximately 211 feet long. There is a possibility that the first 13 feet of interceptor out of Manhole 050 is DI pipe that was installed when Manhole 050 was constructed. It is possible that Manhole 050 was constructed after the original interceptor, which would explain the installation of 65 feet of DI pipe coming into Manhole 050. Both Manhole 050 and 049 have 8-inch diameter DI sewer lines coming into them from the other side of Thunder Hills Creek. As with the previous pipe section, the pipe is in generally good condition for its age except were cast iron fittings were used. There are two wye fittings in this section of the existing interceptor, with the branch for all wye fittings pointing in the 12 o’clock position. It appears that the branch of both wye fittings are capped and are not used as clean outs. In addition to the cast iron wye fittings there is one other cast iron sleeve in this section of interceptor. Each of the cast iron fittings showed severe corrosion from their years of service and exposure to sewage and hydrogen sulfide (H2S). There are several separated joints that appear to be due to pipe deflection as the pipe was installed to parallel the creek along with some minor root intrusion at the connection to Manhole 049. 2.4 MANHOLE 049 TO 046 The existing interceptor from Manhole 049 to 046 parallels the northeast side of the creek south of the existing BPA easement. The interceptor is generally located within the existing access road and follows both the road and creek with several bends in the line, either using actual \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 2 TECHNICAL MEMORANDUM NO. 3 February 13, 2015 bends or by deflecting the pipe. This section of pipe is approximately 548 feet long and contains both existing asbestos cement (AC) pipe and new ductile iron (DI) pipe. The material transitions from 10-inch diameter AC pipe to 10-inch diameter DI pipe approximately 147 feet downstream of Manhole 049. There is heavy root intrusion and debris at the connection with Manhole 049. There are also several separated joints in both the AC and DI portions of the interceptor to allow it to follow the existing creek. In addition to the separated joints, there are six cast iron fittings, one wye, three bends, and two sleeves, contained in this section of pipe. Five of the six cast iron fittings show severe corrosion from H2S, while one of the bends only shows moderate corrosion. Within the DI portion of the interceptor, there are several locations where the concrete mortal lining (CML) has spalled off of the DI pipe and there is evidence of onset corrosion beginning to happen. The wye fitting in this section of interceptor is again oriented in the 12 o’clock position as if it was intended to be a clean out, but it appears to be capped. 2.5 MANHOLE 046 TO 036 The existing interceptor from Manhole 046 to 036 is the last section of interceptor that completely parallels Thunder Hills Creek on the northeast side. This section of interceptor consists of approximately 182 feet of 10-inch diameter ductile iron (DI) pipe and generally runs within the existing BPA easement between the existing access road and the creek. There are several separated joints and two bends contained in this portion of the interceptor to allow it to follow the creek alignment. One of the bends is DI and is in fairly good condition. The second bend near Manhole 036 is cast iron and is very corroded due to H2S. The overall condition of the existing DI pipe is fairly good with some deposits attached to the pipe wall throughout the length of the pipe. 2.6 MANHOLE 036 TO 035 The existing interceptor from Manhole 036 to 035 is the longest section of interceptor without access points at almost 1,300 lineal feet. The interceptor also crosses under Thunder Hills Creek at approximately Station 11+80 and continues to follow the creek behind the Berkshire Apartments to the bottom of the ravine before going under I-405. Beginning at Manhole 036, the existing interceptor is constructed of 12-inch diameter ductile iron (DI) pipe. Although there are no bend fittings in this section of interceptor, there are many slightly separated joints that are clearly meant to deflect the pipe as if traverses and then follows the creek to the bottom of the ravine. There are nine connection points to the existing interceptor between Manhole 036 and 035. The connection points are broken into sets of three and occur approximately 80 feet, 500 feet and 915 feet downstream from Manhole 036. Each block of fittings includes a wye fitting pointed in the 12 o’clock direction, and two tee connections, one pointing at 3 o’clock, and one at 9 o’clock. All of the fittings have evidence of heavy corrosion, even though they appear to be DI, except for the first wye, which appears to be cast iron. This is likely due to either the lack of CML lining in the fittings or the CML lining has spalled off. We know that the tee fittings at 9 o’clock that are 500 and 915 feet downstream of Manhole 036 connect to the Berkshire Apartments. There is no evidence that the tee connections at 80 feet downstream or the connections at 3 o’clock from the tees at 500 and 915 feet downstream connect to any part of the City of Renton’s sewer system. The overall condition of the existing interceptor is moderate at best. In addition to the corroded fittings, there is evidence of heavy scale deposits on the wall of the pipe for the entire length. There are also several locations where the existing CML lining has spalled off the pipe wall and there is evidence of onset corrosion where H2S can come in contact with the DI pipe. \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 3 TECHNICAL MEMORANDUM NO. 3 February 13, 2015 v:\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 4 2.7 MANHOLE 035 TO 034 TO 033 The existing interceptor from Manhole 035 to 034 and then on to 033 includes the sections of interceptor that go under I-405 and Benson Road to Manhole 033 behind Sam’s Club. These sections of interceptor consist of approximately 500 feet of 18-inch diameter ductile iron (DI) pipe. There is significant CML scaling and corrosion throughout both sections of interceptor likely due to the amount of flow and the presence of H2S. There also appears to be a sag in the interceptor between Benson Road and I-405. The water level in the pipe during the inspection increased from approximately 30% full to 75% full from a point 271 feet downstream of Manhole 035 and continued at that level until roughly 338 feet downstream of Manhole 035. There was also evidence of gravel debris during one of the inspection runs which could have caused the rise in water level if it was of sufficient depth to dam the existing pipe. 3.0 REMAINING USEFUL LIFE ASSESSMENT Remaining Useful Life (RUL) of the existing interceptor is a critical part of determining the “Risk” associated with the existing pipeline. Risk is defined as the pipes RUL multiplied by its “Criticality”. The criticality of the pipe is being determined through an analysis of the potential for erosion to expose or damage the pipe. The Preliminary Erosion Hazard Evaluation is contained in Technical Memorandum #5 prepared by Stantec. In an attempt to correlate the RUL with the Erosion Evaluation, the existing interceptor has been broken into eight distinct “reaches”. The RUL for each reach will be determined based on the frequency of “good”, “moderate”, and “poor” remaining useful life designations within each reach. This will allow for a simple multiplication of the RUL and Criticality to come up with useful Risk number for each reach. For the purposes of this analysis, we have separated the overall alignment into the following eight reaches: Reach Location Approximate Gradient (%) 0+00 to 1+00 Not Applicable (Culvert) 1+00 to 5+50 15.1 5+50 to 8+30 4.3 8+30 to 11+00 8.2 11+00 to 12+30 10.4 12+30 to 18+90 5.2 18+90 to 26+75 7.1 26+75 to 28+00 14.4 The remaining useful life for each section of existing interceptor has been designated as either “Good”, “Moderate”, or “Poor”. Based on the visual condition assessment conducted, and as identified in Appendix B – Sewer Main Inspection, a pipe segment with a “Good” RUL is anticipated to have a remaining life expectancy of 30 to 40 years, a segment with a “Moderate” RUL is anticipated to have a remaining life expectancy of 20 to 30 years, and a segment with a “Poor” RUL is expected to have a remaining life expectancy of 10 to 20 years. TECHNICAL MEMORANDUM NO. 3 February 13, 2015 For the purposes of completing the RUL analysis a pipe section with a “Good” RUL was given a numerical value of 1 and it represents a pipe that is constructed of ductile iron (DI) pipe that still has the majority of its CML lining and limited corrosion spots. Evidence of separated joints and minor root intrusion did not have an impact on the RUL designations. A section of pipe with a “Moderate” RUL was given a numerical value of 2 and it represents a portion of asbestos cement (AC) pipe that appears to be in good shape, or a DI pipe that is showing more significant CML scaling and corrosion. The reason for downgrading an AC pipeline was due to its inherent fragility when compared to DI pipe. A section of pipe with a “Poor” RUL was given a numerical value of 3 and it represents a portion of pipe that has severe corrosion or a physical defect in the pipe that will cause flow constraints which would potentially reduce the remaining lifespan of the pipe. These are locations identified as the most likely to fail and cause damage to the environment which would require emergency repairs. Both Appendix A – Figures and Appendix B – Sewer Main Inspection were color coded based on the RUL designation determined during the condition assessment. A section of pipe with Good RUL was coded “Green”, a section of pipe with Moderate RUL was coded “Yellow”, and a section of pipe with Poor RUL was coded “Red”. Table 3-1 summarizes the amount of pipe in each reach with Good, Moderate, and Poor RUL and provides a designated numerical value for the RUL for each reach. Table 3-1 Remaining Useful Life (RUL) Assessment Reach Location Length of Good RUL (feet) Length of Moderate RUL (feet) Length of Poor RUL (feet) RUL Designation 0+00 to 1+00 100 0 0 1 1+00 to 5+50 437 13 0 1 5+50 to 8+30 277 3 0 1 8+30 to 11+00 253 17 0 1 11+00 to 12+30 124 0 6 1 12+30 to 18+90 619 32 9 1 18+90 to 26+75 65 684 36 2 26+75 to 28+00 0 125 0 2 It should be noted that these reaches do not include the existing pipe from Manhole 035 to 033 because this section of pipe was not analyzed as part of the erosion evaluation due to it being under I-405. Likewise, a small portion of pipe from Station 28+00 to approximately 28+75 between Manhole 051 and 051A was not susceptible to erosion from Thunder Hills Creek and was not included in the reaches described above. Both of these portions of pipe would be given an RUL designation of Moderate, or 2, due to corrosion in the DI pipe from Manhole 035 to 033 and the condition of the concrete pipe from Manhole 051 to 051A. These sections of pipe will be included in the Risk analysis. Due to the limited amount of Poor RUL pipe, the majority of the Thunder Hills Interceptor falls under the Good RUL designation. The only reaches that are considered Moderate RUL is due to the presence of existing asbestos cement (AC) pipe. \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 5 TECHNICAL MEMORANDUM NO. 3 February 13, 2015 4.0 REHABILITATION FEASIBILITY This section covers the feasibility of rehabilitating the existing Thunder Hills Interceptor using cured-in-place-pipe (CIPP) technology. The existing Thunder Hills Interceptor is approximately 3,350 feet long from Manhole 051 in Grant Avenue S to Manhole 033 behind Sam’s Club on the west side of I-405. The pipe varies in both material and size over its length and includes pipe ranging from 10-inch to 12-inch to 18-inch diameter, and material ranging from concrete to asbestos cement (AC) to ductile iron (DI), with spot locations of cast iron at various fittings. Overall, the pipe in general is in relatively good condition for its age and is an ideal candidate for pipeline rehabilitation using CIPP technology. Over the length of the interceptor there are only three locations that were identified as requiring open cut excavation and repair prior to being able to rehabilitate the existing interceptor. These locations are discussed in further detail below. 4.1 SPOT REPAIR STATION 23+20 At approximately Station 23+20 in the interceptor run between Manhole 051A and 050 there is a severe offset in the pipe. It appears that Manhole 050 was installed at some time after the original interceptor was constructed and during the installation of the manhole, roughly 65 feet of 12-inch ductile iron (DI) pipe was installed upstream of Manhole 050. To create a transition from the existing 10-inch AC pipe to the new 12-inch pipe it appears that the 10-inch AC line was stubbed into the new 12-inch DI pipe thus creating a severe offset in the pipe. Because the pipe goes from 10-inch to 12-inch in the downstream direction, the flow is not effected by the offset. That being said, it is very difficult to inspect and maintain this section of line. We recommend that this location be dug up and a proper transition fitting be installed that will allow for the installation of a CIPP liner. It should also be noted that the CIPP liner for this run of interceptor will need to be custom made to include the transition for 10-inch to 12-inch pipe. 4.2 SPOT REPAIR STATION 22+40 At approximately Station 22+40 just downstream of Manhole 050 there is an offset joint that is significant enough to disrupt the flow and can potentially cause debris build up. In addition, there is an existing cast iron wye fitting with a capped clean out adjacent to the offset joint. We recommend that this location be dug up and repaired prior to installing a CIPP liner. 4.3 SPOT REPAIR STATION 12+20 At approximately Station 12+20 which is roughly 90 feet downstream of Manhole 036, there is a large piece of concrete debris at the location of a tee fitting. While it does not appear that the existing fitting is active, the debris is large enough that it could end up in the flow line of the existing interceptor and could potentially dam the pipe causing upstream overflows. The concrete debris is too big to clean out with conventional jetting equipment. Add to that the fact that the next downstream access point is almost 1,200 feet away, and we recommend that this location be excavated and the piece of debris removed. \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 6 TECHNICAL MEMORANDUM NO. 3 February 13, 2015 4.4 CIPP REHABILITATION Save for the three spot repair locations identified above, the existing interceptor is an ideal candidate for CIPP rehabilitation. A large portion of the interceptor has significant grease buildup and deposits attached to the walls. This condition, along with the minor root intrusion observed, will not impact the feasibility of installing a CIPP liner. Likewise, the numerous separated joints and bends will not affect the ability to install the liner or prevent the City from conducting future inspections or maintenance. The only limiting factor with the existing interceptor that will need to be addressed prior to CIPP rehabilitation is the distance between Manhole 036 and 035. At almost 1,300 feet, the distance between manholes is more than ideal for the installation of a CIPP liner. The distance is also greater than the capability that the City of Renton has for future maintenance of the line anyway. As such, we recommend that a manhole access point be installed in the interceptor behind the Berkshire apartments to help facilitate the installation of a CIPP liner if rehabilitation is chosen \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 7 TECHNICAL MEMORANDUM NO. 3 February 13, 2015 This page intentionally left blank. \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx 8 TECHNICAL MEMORANDUM NO. 4 FEBRUARY 12, 2015 APPENDIX A Remaining Useful Life Figures TECHNICAL MEMORANDUM No. 4 February 13, 2015 \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx TECHNICAL MEMORANDUM NO. 4 FEBRUARY 12, 2015 APPENDIX B Sewer Main Inspection TECHNICAL MEMORANDUM No. 4 February 13, 2015 \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx Cl i e n t : C i t 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\ 2 0 0 2 \ a c t i v e \ 2 0 0 2 0 0 3 6 0 7 \ a n a l y s i s \ i n s p e c t i o n \ V i d e o I n s p e c t i o n A n a l y s i s _ O b s e r v e d C o n d i t i o n s . x l s x 1 o f 5 Pr o j e c t : T h u n d e r H i l l s S a n i t a r y S e w e r I n t e r c e p t o r A l t e r n a t i v e s A n a l y s i s Pr o j e c t N o . : 2 0 0 2 0 0 3 6 0 7 Se w e r M a i n I n s p e c t i o n US M H D S M H Le n g t h (f e e t ) US M H de p t h DS M H de p t h Pip e D i a (i n c h e s ) Pi p e Ma t e r i a l No . o f Co n n e c t i o n s R e v i e w e r In s p e c t i o n Da t e In s p e c t i o n Dir e c t i o n Ob s e r v e d C o n d i t i o n Di s t a n c e F r o m US M H ( f e e t ) Co m m e n t s Se p a r a t e d j o i n t 26 9 . 4 O k Se p a r a t e d j o i n t 28 2 . 5 O k Se p a r a t e d j o i n t 29 5 . 3 O k Wy e f i t t i n g 1 2 o ' c l o c k , c a s t i r o n , v e r y co r r o d e d 32 1 . 2 O k Ca s t i r o n b e n d , v e r y c o r r o d e d 33 5 . 4 O k Se p a r a t e d j o i n t 35 1 . 6 O k Se p a r a t e d j o i n t 36 4 . 7 O k Se p a r a t e d j o i n t 37 7 . 7 O k Wy e f i t t i n g 1 2 o ' c l o c k , c a s t i r o n , v e r y co r r o d e d 39 2 . 2 O k Ca s t i r o n b e n d , v e r y c o r r o d e d 40 5 . 7 O k Se p a r a t e d j o i n t 41 8 . 5 O k Ex i s t i n g c a s t i r o n p i p e w / s m a l l e r d i a m e t e r sl i p l i n e p i p e , S e v e r e o f f s e t , D i a m e t e r ch a n g e t o 1 2 " 44 5 Ne e d t o d i g a r e p l a c e s e c t i o n , g o l d ri n g a t t h i s l o c a t i o n Ma t e r i a l c h a n g e t o d u c t i l e i r o n 4 4 5 O k 05 0 0 4 9 2 1 1 6 . 6 5 . 7 1 0 A C 2 E J W 6 / 3 / 2 0 1 4 D S Of f s e t j o i n t a n d p o s s i b l e m a t e r i a l c h a n g e 1 3 . 6 Fl o w d i s r u p t e d a t o f f s e t j o i n t , ne e d t o r e p l a c e s e c t i o n Wy e f i t t i n g 1 2 o ' c l o c k , c a s t i r o n , v e r y co r r o d e d , a p p e a r s c a p p e d 15 . 8 Wi l l b e d u g u p w i t h o f f s e t j o i n t a t 13 . 6 ' Se p a r a t e d j o i n t 4 2 . 7 O k Se p a r a t e d j o i n t 5 5 . 8 O k Se p a r a t e d j o i n t 6 8 . 8 O k Se p a r a t e d j o i n t 9 4 . 8 O k Se p a r a t e d j o i n t 1 0 7 . 9 O k Se p a r a t e d j o i n t 1 3 3 . 9 O k Se p a r a t e d j o i n t 1 4 7 O k Se p a r a t e d j o i n t 1 6 0 O k Wy e f i t t i n g 1 2 o ' c l o c k , c a s t i r o n , v e r y co r r o d e d , a p p e a r s c a p p e d 17 3 . 1 D o n o t r e i n s t a t e w y e i f l i n e d Ca s t i r o n s l e e v e , v e r y c o r r o d e d 1 8 7 . 8 O k Se p a r a t e d j o i n t 2 0 1 . 3 O k Ro o t i n t r u s i o n f r o m M H 2 0 8 . 5 O k V: \ 2 0 0 2 \ a c t i v e \ 2 0 0 2 0 0 3 6 0 7 \ a n a l y s i s \ i n s p e c t i o n \ V i d e o I n s p e c t i o n A n a l y s i s _ O b s e r v e d C o n d i t i o n s . x l s x 2 o f 5 Pr o j e c t : T h u n d e r H i l l s S a n i t a r y S e w e r I n t e r c e p t o r A l t e r n a t i v e s A n a l y s i s Pr o j e c t N o . : 2 0 0 2 0 0 3 6 0 7 Se w e r M a i n I n s p e c t i o n US M H D S M H Le n g t h (f e e t ) US M H de p t h DS M H de p t h Pip e D i a (i n c h e s ) Pi p e Ma t e r i a l No . o f Co n n e c t i o n s R e v i e w e r In s p e c t i o n Da t e In s p e c t i o n Dir e c t i o n Ob s e r v e d C o n d i t i o n Di s t a n c e F r o m US M H ( f e e t ) Co m m e n t s 04 9 0 4 6 5 4 8 5 . 7 9 . 9 1 0 A C / D I 1 E J W 6 / 3 / 2 0 1 4 D S He a v y r o o t i n t r u s i o n a n d d e b r i s 0 . 6 O k Se p a r a t e d j o i n t 2 8 . 8 O k Se p a r a t e d j o i n t 4 1 . 9 O k De p o s i t s a t t a c e d t o w a l l 9 t o 3 5 5 . 6 t o 3 1 8 O k Wy e f i t t i n g 1 2 o ' c l o c k , c a s t i r o n , v e r y co r r o d e d , a p p e a r s c a p p e d 81 . 1 D o n o t r e i n s t a t e w y e i f l i n e d Ca s t i r o n s l e e v e , v e r y c o r r o d e d 9 5 . 6 O k Se p a r a t e d j o i n t 1 0 2 . 6 O k Se p a r a t e d j o i n t 1 0 9 O k Se p a r a t e d j o i n t 1 1 5 . 6 O k Se p a r a t e d j o i n t 1 2 2 O k Ca s t i r o n s l e e v e , v e r y c o r r o d e d 1 2 8 . 8 O k Se p a r a t e d j o i n t 1 2 9 . 2 O k Se p a r a t e d j o i n t 1 4 2 . 2 O k Ma t e r i a l c h a n g e f r o m A C t o D I 1 4 7 . 4 O k Be n d , c a s t i r o n , v e r y c o r r o d e d 2 1 4 . 3 Sl i g h t a l i g n m e n t s h i f t r i g h t a n d do w n , O k Se p a r a t e d j o i n t 3 2 6 . 2 O k Be n d , c a s t i r o n 3 3 7 . 7 A l i g n m e n t s h i f t l e f t a n d d o w n , O k Se p a r a t e d j o i n t 3 4 5 . 6 O k Se p a r a t e d j o i n t 3 6 3 . 9 O k CM L s c a l i n g , c o r r o s i o n s t a r t i n g , 8 o ' c l o c k 3 7 7 O k Se p a r a t e d j o i n t 3 8 2 . 2 O k Se p a r a t e d j o i n t 4 0 0 . 5 O k CM L s c a l i n g , c o r r o s i o n s t a r t i n g , 8 o ' c l o c k 4 1 6 . 4 O k Be n d , c a s t i r o n , v e r y c o r r o d e d 4 3 7 . 1 Al i g n m e n t s h i f t r i g h t a n d d o w n , Ok Se p a r a t e d j o i n t 4 3 9 . 7 O k Se p a r a t e d j o i n t 4 7 6 . 1 O k Se p a r a t e d j o i n t 4 9 4 . 2 O k CM L s c a l i n g , c o r r o s i o n s t a r t i n g , 4 o ' c l o c k 5 1 9 . 3 O k CM L s c a l i n g , c o r r o s i o n s t a r t i n g , 4 o ' c l o c k 5 2 2 . 6 O k En d m a n h o l e 5 4 8 . 7 O k V: \ 2 0 0 2 \ a c t i v e \ 2 0 0 2 0 0 3 6 0 7 \ a n a l y s i s \ i n s p e c t i o n \ V i d e o I n s p e c t i o n A n a l y s i s _ O b s e r v e d C o n d i t i o n s . x l s x 3 o f 5 Pr o j e c t : T h u n d e r H i l l s S a n i t a r y S e w e r I n t e r c e p t o r A l t e r n a t i v e s A n a l y s i s Pr o j e c t N o . : 2 0 0 2 0 0 3 6 0 7 Se w e r M a i n I n s p e c t i o n US M H D S M H Le n g t h (f e e t ) US M H de p t h DS M H de p t h Pip e D i a (i n c h e s ) Pi p e Ma t e r i a l No . o f Co n n e c t i o n s R e v i e w e r In s p e c t i o n Da t e In s p e c t i o n Dir e c t i o n Ob s e r v e d C o n d i t i o n Di s t a n c e F r o m US M H ( f e e t ) Co m m e n t s 04 6 0 3 6 1 8 2 9 . 9 1 0 . 8 1 0 D I 0 E J W 6 / 4 / 2 0 1 4 D S De p o s i t s a t t a c h e d t o w a l l 0 t o 1 8 2 O k Se p a r a t e d j o i n t 3 . 7 O k Se p a r a t e d j o i n t 2 2 . 1 O k Se p a r a t e d j o i n t 4 0 . 3 Ok . P e n n y l o c a t e d a t 4 3 . 2 5 a t 4 o'c l o c k DI b e n d 10 4 . 3 A l i g n m e n t s h i f t r i g h t , O k Se p a r a t e d j o i n t 1 5 0 . 7 O k Ca s t i r o n b e n d , v e r y c o r r o d e d 1 8 0 . 6 A l i g n m e n t s h i f t l e f t , O k 03 6 0 3 5 1 2 9 9 1 0 . 8 1 8 . 8 1 2 D I 9 E J W 6 / 4 / 2 0 1 4 D S De p o s i t s a t t a c h e d t o w a l l 0 t o 1 2 9 9 Ok . H e a v y s c a l e d e p o s i t s o n w a l l th r o u g h o u t CM L s c a l i n g , c o r r o s i o n s t a r t i n g , 1 2 o ' c l o c k 1 3 . 1 O k Se p a r a t e d j o i n t 1 7 . 5 O k Se p a r a t e d j o i n t 5 4 O k Wy e f i t t i n g 1 2 o ' c l o c k , c a s t i r o n , v e r y co r r o d e d 80 O k Te e f i t t i n g 3 o ' c l o c k , d u c t i l e i r o n 8 4 . 2 O k Te e f i t t i n g 9 o ' c l o c k , d u c t i l e i r o n 8 8 . 3 O k Co n c r e t e d e b r i s i n t e e b r a n c h , 9 o ' c l o c k 8 9 . 1 N e e d s t o b e r e m o v e d CM L s c a l i n g , c o r r o s i o n s t a r t i n g , 8 o ' c l o c k 1 6 4 . 3 O k Se p a r a t e d j o i n t 2 4 2 O k CM L s c a l i n g , c o r r o s i o n s t a r t i n g , 4 o ' c l o c k & 7 o ' c l o c k 24 6 . 6 t o 2 5 2 . 2 O k Co r r o s i o n a t j o i n t , 4 o ' c l o c k t o 8 o ' c l o c k 2 5 2 . 2 O k CM L s c a l i n g , c o r r o s i o n s t a r t i n g 8 o ' c l o c k 3 2 4 . 2 t o 3 2 9 O k Se p a r a t e d j o i n t 4 2 3 . 7 O k Se p a r a t e d j o i n t 4 7 8 . 5 O k Se p a r a t e d j o i n t 4 9 6 . 7 O k Wy e f i t t i n g 1 2 o ' c l o c k , D I , v e r y c o r r o d e d , ca p p e d 50 1 . 1 D o n o t r e i n s t a t e w y e i f l i n e d Te e f i t t i n g 3 o ' c l o c k , d u c t i l e i r o n 5 0 5 . 5 O k Te e f i t t i n g 9 o ' c l o c k , d u c t i l e i r o n 5 0 9 . 4 O k CM L s c a l i n g , 6 o ' c l o c k , d i s r u p t i n g f l o w 7 4 9 . 4 O k Se p a r a t e d j o i n t 7 6 6 . 7 O k V: \ 2 0 0 2 \ a c t i v e \ 2 0 0 2 0 0 3 6 0 7 \ a n a l y s i s \ i n s p e c t i o n \ V i d e o I n s p e c t i o n A n a l y s i s _ O b s e r v e d C o n d i t i o n s . x l s x 4 o f 5 Pr o j e c t : T h u n d e r H i l l s S a n i t a r y S e w e r I n t e r c e p t o r A l t e r n a t i v e s A n a l y s i s Pr o j e c t N o . : 2 0 0 2 0 0 3 6 0 7 Se w e r M a i n I n s p e c t i o n US M H D S M H Le n g t h (f e e t ) US M H de p t h DS M H de p t h Pip e D i a (i n c h e s ) Pi p e Ma t e r i a l No . o f Co n n e c t i o n s R e v i e w e r In s p e c t i o n Da t e In s p e c t i o n Dir e c t i o n Ob s e r v e d C o n d i t i o n Di s t a n c e F r o m US M H ( f e e t ) Co m m e n t s Wy e f i t t i n g 1 2 o ' c l o c k , D I , v e r y c o r r o d e d , ca p p e d 91 5 . 1 D o n o t r e i n s t a t e w y e i f l i n e d Wy e f i t t i n g 3 o ' c l o c k , D I , v e r y c o r r o d e d , un c l e a r 91 8 . 8 Un c l e a r i f c a p p e d o r a c t i v e , m a y no t w a n t t o r e i n s t a t e i f l i n e d Wy e f i t t i n g 1 0 o ' c l o c k , D I , v e r y c o r r o d e d 9 2 2 . 9 A p p e a r s a c t i v e Se p a r a t e d j o i n t 1 2 0 8 . 1 O k De b r i s o r i n f i l t r a t i o n a t 6 o ' c l o c k , h e a v y gr e a s e 12 9 8 . 9 O k 03 5 0 3 4 3 5 8 1 8 . 8 18 D I 0 E J W 6 / 7 / 2 0 1 4 U S CM L s c a l i n g , c o r r o s i o n s t a r t i n g , f l o w l i n e 6 t o 3 5 8 O k Sa g i n p i p e o r j u s t h i g h f l o w ? 27 1 . 4 t o 3 3 8 Wa t e r l e v e l g e t s u p t o 7 5 % f u l l , gr a v e l d e b r i s i n s a g Se p a r a t e d j o i n t 35 4 . 8 O k 03 4 0 3 3 1 3 5 18 D I 0 E J W 6 / 7 / 2 0 1 4 U S Su r f a c e c o r r o s i o n t h r o u g h o u t , n o t c l e a r i s CM L r e m a i n s 0 t o 1 3 5 O k 33 4 3 Fe e t T o t a l Go o d r e m a i n i n g u s e f u l l i f e Mo d e r a t e r e m a i n i n g u s e f u l l i f e Po o r r e m a i n i n g u s e f u l l i f e V: \ 2 0 0 2 \ a c t i v e \ 2 0 0 2 0 0 3 6 0 7 \ a n a l y s i s \ i n s p e c t i o n \ V i d e o I n s p e c t i o n A n a l y s i s _ O b s e r v e d C o n d i t i o n s . x l s x 5 o f 5 TECHNICAL MEMORANDUM No. 4 February 13, 2015 APPENDIX C Field Investigation Reports \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx TECHNICAL MEMORANDUM No. 4 February 13, 2015 \\us1314-f01\workgroup\2002\active\2002003607\analysis\remaining useful life\mem_thunderhills_rul_20150213.docx VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-051 0.0 MWL Water Level 0 0.0 MWM Water Mark 15 0.0 S01 SRI Surface Roughness Increased 07 04 5.8 DAGS Deposits Attached Grease 02 03 film/residue of grease5 6.5 B Broken 06 9.2 S02 DAGS Deposits Attached Grease 12 03 film/residue of grease5 31.6 F02 DAGS Deposits Attached Grease 12 035 34.0 S03 DAGS Deposits Attached Grease 01 025 36.6 MWM Water Mark 25 57.5 F03 DAGS Deposits Attached Grease 01 025 60.9 S04 DAGS Deposits Attached Grease 01 035 78.7 MWM Water Mark 40 93.8 F04 DAGS Deposits Attached Grease 01 035 97.8 F01 SRI Surface Roughness Increased 07 04 surface damage aggregate proj... 97.8 AMH Manhole 5320_051A 97.8 FH End of Survey Total Length Surveyed97.8 M Scores Pipe Ratings Index Pipe Ratings Index 1.1 1.7 Peak Peak 4 2 Mean Pipe Mean Pipe 0.2 0.4 Pipe Rating Pipe Rating 23 36 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 1 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Light Highway CatPurpose Use Sanitary Shape Circular Material Concrete Pipe (non-reinforced) Lining Total length 97.8 M Height 10 Width 10 mm Joint length M Start 5320_051 Rim to invert M Finish 5320_051A Rim to invert M Direction Down Preclean J Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-051 X Stantecfor Certificate #U-513-18121 Time 11:07 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 97.8 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 97.8 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-051] Water Level 000% Water Mark 015% Surface Roughness Increased 07 to 04 o'clock ST: 1 [S01] 0.0 M Deposits Attached Grease 02 to 03 o'clock 005% OM: 2 [film/residue of grease] 5.8 M Broken 06 o'clock ST: 3 6.5 M Deposits Attached Grease 12 to 03 o'clock 005% OM: 2 [film/residue of grease] [S02] 9.2 M Deposits Attached Grease 12 to 03 o'clock 005% OM: 2 [F02] 31.6 M Deposits Attached Grease 01 to 02 o'clock 005% OM: 2 [S03] 34.0 M Water Mark 025% 36.6 M Deposits Attached Grease 01 to 02 o'clock 005% OM: 2 [F03] 57.5 M Deposits Attached Grease 01 to 03 o'clock 005% OM: 2 [S04] 60.9 M Water Mark 040% 78.7 M Deposits Attached Grease 01 to 03 o'clock 005% OM: 2 [F04] 93.8 M Surface Roughness Increased 07 to 04 o'clock ST: 1 [surface damage aggregate projecting in MH] [F01] Manhole [5320_051A] End of Survey 97.8 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 1 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Light Highway CatPurpose Use Sanitary Shape Circular Material Concrete Pipe (non-reinforced) Lining Total length 97.8 M Height 10 Width 10 mm Joint length M Start 5320_051 Rim to invert M Finish 5320_051A Rim to invert M Downstream Preclean J Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-051 X Stantecfor Certificate #U-513-18121 Time 11:07 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 97.80 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 AMH Manhole 5320_051A 0.0 MWL Water Level 0 2.8 S01 SRI Surface Roughness Increased 06 04 2.8 MWM Water Mark 15 6.4 S02 DSZ Deposits Settled Other 06 debris film at invert5 11.0 F01 SRI Surface Roughness Increased 06 04 11.0 S03 DAGS Deposits Attached Grease 12 12 film/residue of grease5 12.3 F02 DSZ Deposits Settled Other 06 debris film at invert5 32.0 LLD Alignment Left Down 20 58.6 MWM Water Mark 30 110.7 MMC Material change metallic 110.7 SCP Surface Corrosion Metal Pipe 07 04 112.6 MMC Material change concrete 321.1 MMC Material change metallic 322.6 MMC Material change concrete 335.0 F03 DAGS Deposits Attached Grease 12 12 film/residue of grease5 335.1 MSA Abandoned Survey Bend Total Length Surveyed335.1 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/02 Setup 2 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Easement/Right of Way CatPurpose Use Sanitary Shape Circular Material Asbestos Cement Lining Total length M Height 10 Width 10 mm Joint length M Start 5320_051A Rim to invert M Finish 5320_050 Rim to invert M Direction Down Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320_051A X Stantecfor Certificate #U-513-18121 Time 12:23 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 335.1 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 335.1 M Pi p e F l o w Su r v e y D i r Manhole [5320_051A] Water Level 0% 0.0 M Surface Roughness Increased 06 to 04 o'clock [S01] Water Mark 015% 2.8 M Deposits Settled Other 06 o'clock 005% [debris film at invert] [S02] 6.4 M Surface Roughness Increased 06 to 04 o'clock [F01] Deposits Attached Grease 12 to 12 o'clock 005% [film/residue of grease] [S03] 11.0 M Deposits Settled Other 06 o'clock 005% [debris film at invert] [F02] 12.3 M Alignment Left Down 020% 32.0 M Water Mark 030% 58.6 M Material change [metallic] Surface Corrosion Metal Pipe 07 to 04 o'clock 110.7 M Material change [concrete] 112.6 M Material change [metallic] 321.1 M Material change [concrete] 322.6 M Deposits Attached Grease 12 to 12 o'clock 005% [film/residue of grease] [F03] 335.0 M 335.1 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/02 Setup 2 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Easement/Right of Way CatPurpose Use Sanitary Shape Circular Material Asbestos Cement Lining Total length M Height 10 Width 10 mm Joint length M Start 5320_051A Rim to invert M Finish 5320_050 Rim to invert M Downstream Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320_051A X Stantecfor Certificate #U-513-18121 Time 12:23 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 335.10 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-050 0.0 MWL Water Level 0 2.5 MWM Water Mark 30 2.5 MWM Water Mark 60 2.5 S01 DAZ Deposits Attached Other 12 03 pipe wall coated with materia...5 16.3 RFB Roots Fine Barrel 12 16.4 DAGS Deposits Attached Grease 08 095 16.4 DAGS Deposits Attached Grease 03 045 17.3 RFJ Roots Fine Joint 10 02J 34.5 DAGS Deposits Attached Grease 08 095 34.5 DAGS Deposits Attached Grease 03 045 35.8 RFJ Roots Fine Joint 10 02J 60.8 DAGS Deposits Attached Grease 03 045 64.1 JOL Joint Offset Large possible soil ingress at 4 o ... 64.8 MSC Shape or Size Change 10.000 appears to be 10" pipe 64.8 F01 DAZ Deposits Attached Other 12 03 pipe wall coated with materia...5 64.8 MSA Abandoned Survey cannot negotiate offset/size ... Total Length Surveyed64.8 M Scores Pipe Ratings Index Pipe Ratings Index 2 1.9 Peak Peak 2 6 Mean Pipe Mean Pipe 0 0.7 Pipe Rating Pipe Rating 2 44 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 3 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Easement/Right of Way CatPurpose Use Sanitary Shape Circular Material Asbestos Cement Lining Total length M Height 10 Width 10 mm Joint length M Start 5320-051A Rim to invert M Finish 5320-050 Rim to invert M Direction Up Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-051A X Stantecfor Certificate #U-513-18121 Time 10:05 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 64.8 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 64.8 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-050] Water Level 000% 0.0 M Water Mark 030% Water Mark 060% Deposits Attached Other 12 to 03 o'clock 005% OM: 2 [pipe wall coated with material, evidence of H2S] [S01] 2.5 M Roots Fine Barrel 12 o'clock OM: 2 16.3 M 16.4 M Roots Fine Joint 10 to 02 o'clock OM: 1 17.3 M Deposits Attached Grease 08 to 09 o'clock 005% OM: 2 Deposits Attached Grease 03 to 04 o'clock 005% OM: 2 34.5 M Roots Fine Joint 10 to 02 o'clock OM: 1 35.8 M Deposits Attached Grease 03 to 04 o'clock 005% OM: 2 60.8 M Joint Offset Large ST: 2 [possible soil ingress at 4 o clock] 64.1 M 64.8 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 3 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Easement/Right of Way CatPurpose Use Sanitary Shape Circular Material Asbestos Cement Lining Total length M Height 10 Width 10 mm Joint length M Start 5320-051A Rim to invert M Finish 5320-050 Rim to invert M Upstream Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-051A X Stantecfor Certificate #U-513-18121 Time 10:05 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 64.80 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-050 0.0 MWL Water Level 15 512.2 AMH Manhole 5320-051A 512.2 FH End of Survey Total Length Surveyed512.2 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/05 Setup 18 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 512.2 M Height 10 Width mm Joint length M Start 5320-050 Rim to invert M Finish 5320-051A Rim to invert M Direction Up Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-051A D Stantecfor Certificate #U-513-18121 Time 12:58 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 512.2 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-050 0.0 MWL Water Level 15 512.0 AMH Manhole 5320-051A 512.0 FH End of Survey Total Length Surveyed512.0 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/05 Setup 19 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 512.0 M Height 10 Width mm Joint length M Start 5320-050 Rim to invert M Finish 5320-051A Rim to invert M Direction Down Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-050 E Stantecfor Certificate #U-513-18121 Time 13:39 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 512.0 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 512 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-050] Water Level 15% 0.0 M Manhole [5320-051A] End of Survey 512.0 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/05 Setup 19 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 512.0 M Height 10 Width mm Joint length M Start 5320-050 Rim to invert M Finish 5320-051A Rim to invert M Downstream Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-050 E Stantecfor Certificate #U-513-18121 Time 13:39 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 512.00 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-050A 0.0 MWL Water Level 0 2.5 S01 SAP Surface Aggregate Projecting 08 04 2.5 MWM Water Mark 25 5.1 TFC Tap Factory Capped 8.000 12 13.7 JOM Joint Offset Medium 16.1 MMC Material change METALLIC 17.7 MMC Material change AC 17.9 S02 DAGS Deposits Attached Grease 09 035 27.6 F02 DAGS Deposits Attached Grease 09 035 39.5 S03 DSGV Deposits Settled Gravel 05 0710 46.6 MSA Abandoned Survey traction 46.6 F01 SAP Surface Aggregate Projecting 08 04 46.6 F03 DSGV Deposits Settled Gravel 05 0710 Total Length Surveyed46.6 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 5 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Easement/Right of Way CatPurpose Use Sanitary Shape Circular Material Ductile Iron Pipe Lining Total length M Height 10 Width 10 mm Joint length M Start 5320-050A Rim to invert M Finish 5320-049A Rim to invert M Direction Down Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-050A X Stantecfor Certificate #U-513-18121 Time 11:53 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 46.6 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 46.6 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-050A] Water Level 0% 0.0 M Surface Aggregate Projecting 08 to 04 o'clock [S01] Water Mark 025% 2.5 M Tap Factory Capped 8.000 12 o'clock 5.1 M Joint Offset Medium 13.7 M Material change [METALLIC] 16.1 M Material change [AC] 17.7 M 17.9 M Deposits Attached Grease 09 to 03 o'clock 005% [F02] 27.6 M Deposits Settled Gravel 05 to 07 o'clock 010% [S03] 39.5 M Abandoned Survey [traction] Surface Aggregate Projecting 08 to 04 o'clock [F01] Deposits Settled Gravel 05 to 07 o'clock 010% [F03] 46.6 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 5 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location Easement/Right of Way CatPurpose Use Sanitary Shape Circular Material Ductile Iron Pipe Lining Total length M Height 10 Width 10 mm Joint length M Start 5320-050A Rim to invert M Finish 5320-049A Rim to invert M Downstream Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-050A X Stantecfor Certificate #U-513-18121 Time 11:53 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 46.60 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-050 0.0 MWL Water Level 10 0.9 MWM Water Mark 15 3.0 S01 SAV Surface Aggregate Visible 12 12 13.2 JSM Joint Separated Medium flow impeded at JSM 15.3 MMC Material change metallic 16.1 TFC Tap Factory Capped 8.000 12 17.3 MMC Material change AC 20.3 MWM Water Mark 50 67.8 LD Alignment Down 15 73.2 MWM Water Mark 15 80.3 S02 SSS Surface Spalling 03 107.5 F02 SSS Surface Spalling 03 107.8 SZ Surface Other 09 pipe material chipped at join... 172.8 MMC Material change metallic 172.8 SCP Surface Corrosion Metal Pipe 12 12 173.3 TFC Tap Factory Capped 8.000 12 174.4 MMC Material change AC 187.3 MMC Material change metallic 187.4 SCP Surface Corrosion Metal Pipe 12 12 188.3 MMC Material change AC 189.6 F01 SAV Surface Aggregate Visible 12 12 207.9 RFB Roots Fine Barrel 09 208.2 RFB Roots Fine Barrel 10 210.8 AMH Manhole 5320-049 210.8 FH End of Survey Total Length Surveyed210.8 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 7 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location CatPurpose Use Shape Circular Material Asbestos Cement Lining Total length 210.8 M Height 10 Width mm Joint length M Start 5320-050 Rim to invert M Finish 5320-049 Rim to invert M Direction Down Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-050 Y Stantecfor Certificate #U-513-18121 Time 15:01 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 210.8 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 172.8 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-050] Water Level 10% 0.0 M 0.9 M Surface Aggregate Visible 12 to 12 o'clock [S01] 3.0 M Joint Separated Medium [flow impeded at JSM] 13.2 M Material change [metallic] 15.3 M Tap Factory Capped 8.000 12 o'clock 16.1 M Material change [AC] 17.3 M Water Mark 050% 20.3 M Alignment Down 015% 67.8 M Water Mark 015% 73.2 M Surface Spalling 03 o'clock [S02] 80.3 M Surface Spalling 03 o'clock [F02] 107.5 M 107.8 M Material change [metallic] Surface Corrosion Metal Pipe 12 to 12 o'clock 172.8 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 7 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location CatPurpose Use Shape Circular Material Asbestos Cement Lining Total length 210.8 M Height 10 Width mm Joint length M Start 5320-050 Rim to invert M Finish 5320-049 Rim to invert M Downstream Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-050 Y Stantecfor Certificate #U-513-18121 Time 15:01 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 210.80 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 172.8 M 210.8 M Pi p e F l o w Su r v e y D i r Tap Factory Capped 8.000 12 o'clock 173.3 M Material change [AC] 174.4 M Material change [metallic] 187.3 M 187.4 M Material change [AC] 188.3 M Surface Aggregate Visible 12 to 12 o'clock [F01] 189.6 M Roots Fine Barrel 09 o'clock 207.9 M Roots Fine Barrel 10 o'clock 208.2 M Manhole [5320-049] End of Survey 210.8 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 7 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location CatPurpose Use Shape Circular Material Asbestos Cement Lining Total length 210.8 M Height 10 Width mm Joint length M Start 5320-050 Rim to invert M Finish 5320-049 Rim to invert M Downstream Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-050 Y Stantecfor Certificate #U-513-18121 Time 15:01 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 210.80 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-049 0.0 MWL Water Level 15 0.6 MSA Abandoned Survey traction/root ball (removed b... Total Length Surveyed0.6 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 8 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length M Height 10 Width mm Joint length M Start 5320-049 Rim to invert M Finish 5320-046 Rim to invert M Direction Down Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-049 Y Stantecfor Certificate #U-513-18121 Time 15:09 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 0.6 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 0.6 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-049] Water Level 15% 0.0 M 0.6 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 8 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control De-Watered using Jetter Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length M Height 10 Width mm Joint length M Start 5320-049 Rim to invert M Finish 5320-046 Rim to invert M Downstream Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-049 Y Stantecfor Certificate #U-513-18121 Time 15:09 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 00.60 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-049 0.0 MWL Water Level 10 0.0 MWM Water Mark 20 55.6 S01 DAZ Deposits Attached Other 09 035 80.0 F01 DAZ Deposits Attached Other 09 035 80.2 MMC Material change metallic 81.1 TFC Tap Factory Capped 8.000 12 82.1 MMC Material change AC 82.5 S02 DAZ Deposits Attached Other 09 035 95.1 RTJ Roots Tap Joint 08J10 95.6 MMC Material change metallic 95.7 SCP Surface Corrosion Metal Pipe 08 04 95.7 MMC Material change AC 102.9 LLD Alignment Left Down 20 128.3 MMC Material change metallic 128.7 MMC Material change AC 129.5 DAGS Deposits Attached Grease 085 129.8 F02 DAZ Deposits Attached Other 09 035 131.0 LLD Alignment Left Down 15 132.2 S03 DAZ Deposits Attached Other 10 055 146.8 F03 DAZ Deposits Attached Other 10 055 147.0 S04 DAZ Deposits Attached Other 08 0410 213.7 F04 DAZ Deposits Attached Other 08 0410 214.1 MMC Material change metallic 215.3 RFJ Roots Fine Joint 12J 215.3 LRD Alignment Right Down 15 215.4 MMC Material change AC 218.9 LD Alignment Down 15 222.0 S05 DAZ Deposits Attached Other 08 045 252.8 LRD Alignment Right Down 10 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 9 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 548.7 M Height 10 Width mm Joint length M Start 5320-049 Rim to invert M Finish 5320-046 Rim to invert M Direction Down Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-049 Z Stantecfor Certificate #U-513-18121 Time 15:27 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 548.7 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 9 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 548.7 M Height 10 Width mm Joint length M Start 5320-049 Rim to invert M Finish 5320-046 Rim to invert M Direction Down Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-049 Z Stantecfor Certificate #U-513-18121 Time 15:27 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 548.7 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 271.6 RFJ Roots Fine Joint 12J 315.2 S06 SRI Surface Roughness Increased 12 12 318.8 F05 DAZ Deposits Attached Other 08 045 436.6 MMC Material change metallic 436.6 LRD Alignment Right Down 15 438.2 MMC Material change AC 441.0 LD Alignment Down 10 548.0 F06 SRI Surface Roughness Increased 12 12 548.7 AMH Manhole 5320-046 548.7 FH End of Survey Total Length Surveyed548.7 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 128.7 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-049] Water Level 10% Water Mark 020% 0.0 M Deposits Attached Other 09 to 03 o'clock 005% [S01] 55.6 M Deposits Attached Other 09 to 03 o'clock 005% [F01] 80.0 M 80.2 M Tap Factory Capped 8.000 12 o'clock 81.1 M Material change [AC] 82.1 M 82.5 M Roots Tap Joint 08 o'clock 010% 95.1 M 95.6 M 95.7 M Alignment Left Down 020% 102.9 M Material change [metallic] 128.3 M 128.7 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 9 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 548.7 M Height 10 Width mm Joint length M Start 5320-049 Rim to invert M Finish 5320-046 Rim to invert M Downstream Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-049 Z Stantecfor Certificate #U-513-18121 Time 15:27 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 548.70 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 128.7 M 315.2 M Pi p e F l o w Su r v e y D i r Deposits Attached Grease 08 o'clock 005% 129.5 M 129.8 M Alignment Left Down 015% 131.0 M Deposits Attached Other 10 to 05 o'clock 005% [S03] 132.2 M Deposits Attached Other 10 to 05 o'clock 005% [F03] 146.8 M Deposits Attached Other 08 to 04 o'clock 010% [S04] 147.0 M Deposits Attached Other 08 to 04 o'clock 010% [F04] 213.7 M Material change [metallic] 214.1 M Roots Fine Joint 12 o'clock Alignment Right Down 015% 215.3 M 215.4 M Alignment Down 015% 218.9 M Deposits Attached Other 08 to 04 o'clock 005% [S05] 222.0 M Alignment Right Down 010% 252.8 M Roots Fine Joint 12 o'clock 271.6 M Surface Roughness Increased 12 to 12 o'clock [S06] 315.2 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 9 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 548.7 M Height 10 Width mm Joint length M Start 5320-049 Rim to invert M Finish 5320-046 Rim to invert M Downstream Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-049 Z Stantecfor Certificate #U-513-18121 Time 15:27 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 548.70 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 315.2 M 548.7 M Pi p e F l o w Su r v e y D i r Deposits Attached Other 08 to 04 o'clock 005% [F05] 318.8 M Material change [metallic] Alignment Right Down 015% 436.6 M Material change [AC] 438.2 M Alignment Down 010% 441.0 M Surface Roughness Increased 12 to 12 o'clock [F06] 548.0 M 548.7 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/03 Setup 9 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 548.7 M Height 10 Width mm Joint length M Start 5320-049 Rim to invert M Finish 5320-046 Rim to invert M Downstream Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-049 Z Stantecfor Certificate #U-513-18121 Time 15:27 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 548.70 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-046 0.0 MWL Water Level 15 0.0 S01 SRI Surface Roughness Increased 12 12 0.0 S02 DAZ Deposits Attached Other 08 045 0.3 LRD Alignment Right Down 10 20.7 LD Alignment Down 10 39.5 JSM Joint Separated Medium flow imbeded as JSM 103.4 LRD Alignment Right Down 15 180.0 MMC Material change metallic 180.8 LLD Alignment Left Down 10 181.8 AMH Manhole 5320-036 181.8 FH End of Survey 181.8 MMC Material change AC 181.8 F01 SRI Surface Roughness Increased 12 12 181.8 F02 DAZ Deposits Attached Other 08 045 Total Length Surveyed181.8 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/04 Setup 10 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 181.8 M Height 10 Width mm Joint length M Start 5320-046 Rim to invert M Finish 5320-036 Rim to invert M Direction Down Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-046 Z Stantecfor Certificate #U-513-18121 Time 10:37 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 181.8 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 181.8 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-046] Water Level 15% Surface Roughness Increased 12 to 12 o'clock [S01] Deposits Attached Other 08 to 04 o'clock 005% [S02] 0.0 M 0.3 M Alignment Down 010% 20.7 M Joint Separated Medium [flow imbeded as JSM] 39.5 M Alignment Right Down 015% 103.4 M Material change [metallic] 180.0 M 180.8 M Manhole [5320-036] End of Survey Material change [AC] Surface Roughness Increased 12 to 12 o'clock [F01] Deposits Attached Other 08 to 04 o'clock 005% [F02] 181.8 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/04 Setup 10 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 181.8 M Height 10 Width mm Joint length M Start 5320-046 Rim to invert M Finish 5320-036 Rim to invert M Downstream Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-046 Z Stantecfor Certificate #U-513-18121 Time 10:37 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 181.80 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-036 0.0 MWL Water Level 15 3.7 S01 SRI Surface Roughness Increased 12 12 79.5 MMC Material change metallic 80.0 TFC Tap Factory Capped 12.000 12 81.8 MMC Material change AC 84.5 TFA Tap Factory Active 8.000 02 88.3 TFA Tap Factory Active 8.000 09 88.3 OBM Obstacle Pipe Material 09 upstream broken of hole in pi...25 251.2 DAE Deposits Attached Encrustation 02 11 flow impeded at DAE5 501.1 MMC Material change metallic 503.0 TFC Tap Factory Capped 8.000 12 503.5 MMC Material change AC 506.0 TFA Tap Factory Active 8.000 02 510.0 TFA Tap Factory Active 8.000 09 765.0 JOM Joint Offset Medium flow impeded at JOM 877.5 LRD Alignment Right Down 10 917.0 TFC Tap Factory Capped 8.000 12 921.0 TF Tap Factory 8.000 03 unclear if active or abandone... 924.6 TFA Tap Factory Active 8.000 10 1298.0 F01 SRI Surface Roughness Increased 12 12 1298.0 IG Infil Gusher 12 12 infiltration in MH and DAE in... 1298.9 AMH Manhole 5320-196 1298.9 FH End of Survey Total Length Surveyed1,298.9 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/04 Setup 12 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 1298.9 M Height 12 Width mm Joint length M Start 5320-036 Rim to invert M Finish 5320-196 Rim to invert M Direction Down Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-036 C Stantecfor Certificate #U-513-18121 Time 13:14 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 1298.9 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 765 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-036] Water Level 15% 0.0 M Surface Roughness Increased 12 to 12 o'clock [S01] 3.7 M Material change [metallic] 79.5 M Tap Factory Capped 12.000 12 o'clock 80.0 M Material change [AC] 81.8 M Tap Factory Active 8.000 02 o'clock 84.5 M Tap Factory Active 8.000 09 o'clock Obstacle Pipe Material 09 o'clock 025% [upstream broken of hole in pipe not found - unclear if occurred at installation or later] 88.3 M Deposits Attached Encrustation 02 to 11 o'clock 005% [flow impeded at DAE] 251.2 M Material change [metallic] 501.1 M Tap Factory Capped 8.000 12 o'clock 503.0 M 503.5 M Tap Factory Active 8.000 02 o'clock 506.0 M Tap Factory Active 8.000 09 o'clock 510.0 M Joint Offset Medium [flow impeded at JOM] 765.0 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/04 Setup 12 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 1298.9 M Height 12 Width mm Joint length M Start 5320-036 Rim to invert M Finish 5320-196 Rim to invert M Downstream Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-036 C Stantecfor Certificate #U-513-18121 Time 13:14 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 1298.90 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 765 M 1298.9 M Pi p e F l o w Su r v e y D i r Alignment Right Down 010% 877.5 M Tap Factory Capped 8.000 12 o'clock 917.0 M Tap Factory 8.000 03 o'clock [unclear if active or abandoned] 921.0 M Tap Factory Active 8.000 10 o'clock 924.6 M Surface Roughness Increased 12 to 12 o'clock [F01] Infil Gusher 12 to 12 o'clock [infiltration in MH and DAE in channel] 1,298.0 M 1,298.9 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/04 Setup 12 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location CatPurpose Use Shape Circular Material Ductile Iron Pipe Lining Total length 1298.9 M Height 12 Width mm Joint length M Start 5320-036 Rim to invert M Finish 5320-196 Rim to invert M Downstream Preclean J Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-036 C Stantecfor Certificate #U-513-18121 Time 13:14 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 1298.90 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-034 0.0 MWL Water Level 10 3.2 S01 SSS Surface Spalling 08 10 3.2 S02 SSS Surface Spalling 02 04 3.7 MWM Water Mark 30 29.7 MWL Water Level 30 35.5 S03 DAZ Deposits Attached Other 12 025 44.9 F03 DAZ Deposits Attached Other 12 025 48.5 MWL Water Level 75 71.5 S04 DAE Deposits Attached Encrustation 08 045 78.8 F04 DAE Deposits Attached Encrustation 08 045 99.2 MWM Water Mark 60 111.5 MWL Water Level 15 222.4 MWL Water Level 20 357.0 F02 SSS Surface Spalling 02 04 357.0 F01 SSS Surface Spalling 08 10 357.5 DAE Deposits Attached Encrustation 08 11 from infiltration in MH (gush...20 357.6 AMH Manhole 5320-035 357.6 FH End of Survey Total Length Surveyed357.6 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 21 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 357.6 M Height 18 Width mm Joint length M Start 5320-034 Rim to invert M Finish 5320-035 Rim to invert M Direction Up Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-035 D Stantecfor Certificate #U-513-18121 Time 1:35 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 357.6 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 357 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-034] Water Level 10% 0.0 M Surface Spalling 08 to 10 o'clock [S01] Surface Spalling 02 to 04 o'clock [S02] 3.2 M 3.7 M Water Level 030% 29.7 M Deposits Attached Other 12 to 02 o'clock 005% [S03] 35.5 M Deposits Attached Other 12 to 02 o'clock 005% [F03] 44.9 M Water Level 075% 48.5 M Deposits Attached Encrustation 08 to 04 o'clock 005% [S04] 71.5 M Deposits Attached Encrustation 08 to 04 o'clock 005% [F04] 78.8 M Water Mark 060% 99.2 M Water Level 015% 111.5 M Water Level 020% 222.4 M Surface Spalling 02 to 04 o'clock [F02] Surface Spalling 08 to 10 o'clock [F01] 357.0 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 21 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 357.6 M Height 18 Width mm Joint length M Start 5320-034 Rim to invert M Finish 5320-035 Rim to invert M Upstream Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-035 D Stantecfor Certificate #U-513-18121 Time 1:35 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 357.60 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 357 M 357.6 M Pi p e F l o w Su r v e y D i r 357.5 M 357.6 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 21 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 357.6 M Height 18 Width mm Joint length M Start 5320-034 Rim to invert M Finish 5320-035 Rim to invert M Upstream Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-035 D Stantecfor Certificate #U-513-18121 Time 1:35 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 357.60 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey pipe segment already PACP cod... 0.0 AMH Manhole 5320-034 X 0.0 MWL Water Level 10 358.5 AMH Manhole 5320-035 X 358.5 FH End of Survey Total Length Surveyed358.5 M Scores Pipe Ratings Index Pipe Ratings Index 0 0 Peak Peak 0 0 Mean Pipe Mean Pipe 0 0 Pipe Rating Pipe Rating 0 0 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 22 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 358.5 M Height 18 Width mm Joint length M Start 5320-034 X Rim to invert M Finish 5320-035 X Rim to invert M Direction Up Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-035 X D Stantecfor Certificate #U-513-18121 Time 1:57 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 358.5 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 358.5 M Pi p e F l o w Su r v e y D i r Start of Survey [pipe segment already PACP coded] Manhole [5320-034 X] Water Level 10% 0.0 M Manhole [5320-035 X] End of Survey 358.5 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 22 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 358.5 M Height 18 Width mm Joint length M Start 5320-034 X Rim to invert M Finish 5320-035 X Rim to invert M Upstream Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-035 X D Stantecfor Certificate #U-513-18121 Time 1:57 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 358.50 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 VideoCount CD Code Fr To RemarksImRefIn1%JntIn2 0.0 ST Start of Survey 0.0 AMH Manhole 5320-033 0.0 MWL Water Level 10 3.0 MWM Water Mark 20 3.0 S01 DSF Deposits Settled Fine 04 0815 126.7 DAGS Deposits Attached Grease 07 0810 130.0 DAE Deposits Attached Encrustation 12 1215 131.0 F01 DSF Deposits Settled Fine 04 0815 131.1 AMH Manhole 5320-034 131.1 FH End of Survey MH is underneath I-405 Total Length Surveyed131.1 M Scores Pipe Ratings Index Pipe Ratings Index 0 2.9 Peak Peak 0 6 Mean Pipe Mean Pipe 0 0.6 Pipe Rating Pipe Rating 0 83 Structural: O&M: 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 20 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 131.1 M Height 18 Width mm Joint length M Start 5320-033 Rim to invert M Finish 5320-034 Rim to invert M Direction Up Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Tabular Report of PSR 5320-034 D Stantecfor Certificate #U-513-18121 Time 1:11 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 131.1 Pressure Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 131.1 M Pi p e F l o w Su r v e y D i r Start of Survey Manhole [5320-033] Water Level 10% 0.0 M Water Mark 020% Deposits Settled Fine 04 to 08 o'clock 015% OM: 3 [S01] 3.0 M Deposits Attached Grease 07 to 08 o'clock 010% OM: 2 126.7 M Deposits Attached Encrustation 12 to 12 o'clock 015% OM: 3 130.0 M Deposits Settled Fine 04 to 08 o'clock 015% OM: 3 [F01] 131.0 M 131.1 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 20 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Not Controlled Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 131.1 M Height 18 Width mm Joint length M Start 5320-033 Rim to invert M Finish 5320-034 Rim to invert M Upstream Preclean N Year rehabilitated Additional info Second Run bigger tires Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-034 D Stantecfor Certificate #U-513-18121 Time 1:11 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 131.10 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 137.6 M Pi p e F l o w Su r v e y D i r Start of Survey [pipe segment already PACP coded] Manhole [5320-033 X] Water Level 5% 0.0 M Manhole [5320-034 Y] End of Survey 137.6 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 23 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 137.6 M Height 18 Width mm Joint length M Start 5320-033 X Rim to invert M Finish 5320-034 Y Rim to invert M Upstream Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-034 Y D Stantecfor Certificate #U-513-18121 Time 2:43 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 137.60 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002 0 M 137.6 M Pi p e F l o w Su r v e y D i r Start of Survey [pipe segment already PACP coded] Manhole [5320-033 X] Water Level 5% 0.0 M Manhole [5320-034 Y] End of Survey 137.6 M Direction 2014/06/02Year Cleaned P/O # Media No Date 2014/06/07 Setup 23 Surveyor Dominick Drainage Thunder Hills Street Grant Ave S Weather Dry City Renton Flow control Location Easement/Right of Way CatPurposeMaintenance Related Use Shape Circular Material Asbestos Cement Lining Total length 137.6 M Height 18 Width mm Joint length M Start 5320-033 X Rim to invert M Finish 5320-034 Y Rim to invert M Upstream Preclean N Year rehabilitated Additional info Further location details Structural Miscellaneous O&M Hydraulic Constructional System Owner City of Renton Year laid Pipe Graphic Report of PSR 5320-034 Y D Stantecfor Certificate #U-513-18121 Time 2:43 Survey Customer Stantec Engineering Grade to invert Rim to grade Grade to invert Rim to grade Length Surveyed 137.60 Northing Easting Elevation Coordinate System GPS Accuracy Project Renton Thunder Hills Work Order Bravo Environmental NW Phone: 425-424-9000 Fax: 425-424-9002